package com.example.demo1.dao.impl;

import com.example.demo1.model.User;
import com.example.demo1.dao.UserDAO;

import java.sql.*;

public class UserDaoImpl implements UserDAO {
    @Override
    public User userLogin(String username, String password) {
        String url = "jdbc:mysql://localhost:3306/library_management?allowPublicRetrieval=true&useSSL=false&serverTimezone=Asia/Shanghai";
        String DBusername = "root"; // 你的数据库用户名
        String DBpassword = "123456"; // 你的数据库密码
        String sql = "SELECT * FROM user WHERE username = ? AND password = ?";
        Connection conn = null; // 声明一个Connection对象
        PreparedStatement prep =null;
        ResultSet resultSet = null;
        User user = new User();

        try {
            Class.forName("com.mysql.cj.jdbc.Driver");
            conn = DriverManager.getConnection(url,DBusername,DBpassword);
            System.out.println("数据库连接成功！连接对象: " + conn);

            // 你的数据库操作代码

            prep = conn.prepareStatement(sql);
            prep.setString(1, username);
            prep.setString(2, password);
            resultSet = prep.executeQuery();

            while (resultSet.next()) {
                user.setId(resultSet.getInt("id"));
                user.setUsername(resultSet.getString("username"));
                user.setPassword(resultSet.getString("password"));
                user.setName(resultSet.getString("name"));
                user.setRole(resultSet.getString("role"));
                user.setEmail(resultSet.getString("email"));
                user.setPhone(resultSet.getString("phone"));
                user.setCreate_Time(resultSet.getTimestamp("create_time").toLocalDateTime());
                user.setStatus(resultSet.getInt("status"));


                System.out.println("User ID: " + resultSet.getInt("id"));
                System.out.println("Username: " + resultSet.getString("username"));
                System.out.println("Password: " + resultSet.getString("password"));
                System.out.println("Email: " + resultSet.getString("email"));
            }

            return  user;


        } catch (ClassNotFoundException e) {
            throw new RuntimeException(e);
        } catch (SQLException e) {
            throw new RuntimeException(e);
        } finally {
            // 5. 关闭连接 (见下文)
            if (conn != null) {
                try {
                    conn.close();
                    System.out.println("数据库连接已关闭。");
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
            if (resultSet != null) {
                try {
                    resultSet.close();
                } catch (SQLException e) {
                    e.printStackTrace();
                }
            }
            if (prep != null) {
                try {
                    prep.close();
                } catch (SQLException e) {
                    e.printStackTrace();
                }
            }
        }

    }

    @Override
    public boolean userSignUp() {
        return false;
    }

    @Override
    public User findByUsername() {
        return null;
    }
}
